diff --git a/server/gameserver/app.cc b/server/gameserver/app.cc
index 8d59aad..c411388 100755
--- a/server/gameserver/app.cc
+++ b/server/gameserver/app.cc
@@ -66,14 +66,13 @@ static void SavePerfLog()
                                   f8::HttpClientPool::Instance()->GetPendingNum()
                                  });
     if (App::Instance()->HasFlag(4)) {
-        a8::XPrintf("mainloop_time:%d netmsg_time:%d room:%d over_room:%d online:%d bullet:%d grid_chg_times:%d test_times:%d send_node_num:%d sent_node_num:%d sent_bytes_num:%d max_user_request_delay:%d\n",
+        a8::XPrintf("mainloop_time:%d netmsg_time:%d room:%d over_room:%d online:%d grid_chg_times:%d test_times:%d send_node_num:%d sent_node_num:%d sent_bytes_num:%d max_user_request_delay:%d\n",
                     {
                      App::Instance()->perf.max_run_delay_time,
                      App::Instance()->perf.max_dispatchmsg_time,
                      RoomMgr::Instance()->RoomNum(),
                      RoomMgr::Instance()->OverRoomNum(),
                      PlayerMgr::Instance()->OnlineNum(),
-                     App::Instance()->perf.entity_num[ET_Bullet],
                      App::Instance()->perf.grid_chg_times,
                      App::Instance()->perf.test_times,
                      GGListener::Instance()->GetSendNodeNum(),
diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index 123db48..882e3dd 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -34,10 +34,7 @@ enum PlayerState_e
 
 enum VirtualItemId_e
 {
-    VID_Item_Gold = 50001,
-    VID_Item_Exp = 50002,
-    VID_Soul_Stone = 50018,
-    VID_Pickaxe = 50019
+
 };
 
 enum SyncData_e
@@ -45,95 +42,18 @@ enum SyncData_e
     SYNC_Data_Exp = 0,
 };
 
-enum DoorState_e
-{
-    DoorStateClose = 0,
-    DoorStateOpen = 1
-};
-
 enum GasMode_e
 {
     GasInactive = 0,
-    GasWaiting = 1,
-    GasMoving = 2,
-    GasJump = 3
-};
-
-enum ActionType_e
-{
-    AT_None = 0,
-    AT_Reload = 1,
-    AT_UseItem = 2,
-    AT_Relive = 3,
-    AT_Rescue = 4
-};
-
-enum InventorySlot_e
-{
-    IS_9MM  = 0,
-    IS_556MM  = 1,
-    IS_762MM  = 2,
-    IS_12GAUGE  = 3,
-    IS_RPG  = 4,
-    IS_FRAG  = 5,
-    IS_SMOKE  = 6,
-    IS_HEALTHKIT  = 7, //医疗包
-    IS_PAIN_KILLER  = 8, //止痛药
-
-    IS_1XSCOPE  = 12,
-    IS_2XSCOPE  = 13,
-    IS_4XSCOPE  = 14,
-    IS_8XSCOPE  = 15,
-    IS_15XSCOPE = 16,
-
-    IS_END
-};
-
-enum SkillType_e
-{
-    ST_Hide = 1,
-    ST_SummonHero = 2,
-    ST_Accelerate = 3,
-    ST_DamageAdd = 4,
-    ST_DefAdd = 5,
-    ST_RecoverHP = 6,
-    ST_ReflectDamage = 7,
-    ST_SelfDetonate = 8
-};
-
-enum SkillCond_e
-{
-    SC_Active = 1,
-    SC_Passive = 2
-};
-
-enum VirtualWeapon_e
-{
-    VW_SafeArea = 9000000,
-    VW_Spectate = 9000001,
-    VW_SelfDetonate = 9000002,
-    VW_Mine = 9000003,
-    VW_Tank = 9000004,
 };
 
 enum VirtualPlayer_e
 {
-    VP_SafeArea = 9000000,
     VP_Spectate = 9000001,
-    VP_SelfDetonate = 9000002,
-    VP_Mine = 9000003,
 };
 
 enum EquipAttr_e
 {
-    EA_View = 1, //客户端用
-    EA_ShotRange = 2,
-    EA_Volume = 3,
-    EA_AutoAngle = 4, //客户端用
-    EA_BulletAngle = 5,
-    EA_Atk = 6,
-    EA_Def = 7,
-    EA_Speed = 8,
     EA_End
 };
 
@@ -142,17 +62,7 @@ enum EntityType_e
    ET_None = 0,
    ET_Player = 1,
    ET_Obstacle = 2,
-   ET_Building = 3,
-   //ET_LootSpawner = 4,
    ET_Loot = 5,
-   //ET_DeadBody = 6,
-   //ET_Decal = 7,
-   //ET_Projectile = 8,
-   ET_Smoke = 9,
-   ET_Hero = 10,
-
-   ET_Bullet = 20,
-
    ET_Android = 30,
    ET_MAX
 };
@@ -166,11 +76,6 @@ enum EntitySubType_e
 
 enum PropertyType_e
 {
-    kPropHp = 1,
-    kPropMaxHp = 2,
-    kPropTankBulletNum = 6,
-    kPropTankOil = 7,
-    kPropBulletNum = 8
 };
 
 enum MapObjectType_e
@@ -186,23 +91,12 @@ const float TEN_W = 10000 * 10;
 
 const int SYS_RESET_TIME = 2*60; //每日两点重置
 
-const int DEF_WEAPON_ID = 12103;
-
 const int SERVER_FRAME_RATE = 20;
 const int SYNC_FRAME_RATE = 10;
 const float FRAME_RATE_MS = 1000.0f / SERVER_FRAME_RATE;
 
-const int MAX_WEAPON_NUM = 5;
 const int MAX_SKIN_LV = 9;
 
-const int GUN_SLOT1 = 1;
-const int GUN_SLOT2 = 2;
-
-const int FRAG_SLOT = 3;
-const int SMOKE_SLOT = 4;
-
-const int DOOR_THING_ID = 61701;
-
 const int FIGHTING_MODE_BULLET_NUM = 10000 * 10000;
 
 const int MAX_NODE_ID = 8;
diff --git a/server/gameserver/framemaker.cc b/server/gameserver/framemaker.cc
index c58f34d..d6a89c3 100644
--- a/server/gameserver/framemaker.cc
+++ b/server/gameserver/framemaker.cc
@@ -27,10 +27,6 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
         for (auto& itr : hum->out_objects) {
             msg->add_out_objids(itr);
         }
-        if (room->gas_data.gas_mode == GasMoving) {
-            msg->set_gas_progress(room->gas_data.gas_progress);
-            TypeConvert::ToPb(room->gas_data.pos_old, msg->mutable_gas_pos_old());
-        }
         msg->set_alive_count(room->AliveCount());
     }
     return msg;
diff --git a/server/gameserver/global.cc b/server/gameserver/global.cc
index 5500a17..f47e348 100755
--- a/server/gameserver/global.cc
+++ b/server/gameserver/global.cc
@@ -5,10 +5,7 @@ int g_hint_flags = 0;
 
 bool Global::IsVirtualItem(int itemid)
 {
-    return (itemid == VID_Item_Exp ||
-            itemid == VID_Item_Gold ||
-            itemid == VID_Soul_Stone ||
-            itemid == VID_Pickaxe);
+    return false;
 }
 
 time_t Global::BetweenDays(time_t time1, time_t time2)
@@ -32,7 +29,3 @@ int Global::g_time_zone = 8;
 bool Global::g_shutdown = false;
 ColliderComponent* Global::last_collider = nullptr;
 
-bool IsValidSlotId(int slot_id)
-{
-    return slot_id >= 0 && slot_id < IS_END;
-}
diff --git a/server/gameserver/global.h b/server/gameserver/global.h
index 24604d8..4a6e15b 100755
--- a/server/gameserver/global.h
+++ b/server/gameserver/global.h
@@ -21,4 +21,3 @@ class Global : public a8::Singleton<Global>
     static ColliderComponent* last_collider;
 };
 
-bool IsValidSlotId(int slot_id);
diff --git a/server/gameserver/gridservice.cc b/server/gameserver/gridservice.cc
index eced762..8acb07c 100644
--- a/server/gameserver/gridservice.cc
+++ b/server/gameserver/gridservice.cc
@@ -183,11 +183,6 @@ void GridService::RemoveFromGridList(std::set<GridCell*>& grid_list, Entity* ent
                 grid->human_list.erase((Human*)entity);
             }
             break;
-        case ET_Bullet:
-            {
-                grid->bullet_list.erase((Bullet*)entity);
-            }
-            break;
         default:
             {
                 grid->entity_list.erase(entity);
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index d3da94c..fba5c11 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -432,17 +432,6 @@ void Human::FindLocation()
                     }
                 }
                 break;
-            case ET_Building:
-                {
-                    if (!target || target->entity_type != ET_Building) {
-                        AabbCollider aabb_box;
-                        entity->GetAabbBox(aabb_box);
-                        if (TestCollision(&aabb_box)) {
-                            target = entity;
-                        }
-                    }
-                }
-                break;
             default:
                 break;
             }
@@ -464,9 +453,7 @@ void Human::RefreshView()
         }
         for (Entity* entity : cell->entity_list) {
             switch (entity->entity_type) {
-            case ET_Building:
             case ET_Obstacle:
-            case ET_Hero:
             case ET_Loot:
                 {
                     AddToNewObjects(entity);
@@ -500,9 +487,7 @@ void Human::OnGridListChange(std::set<GridCell*>& old_grid_list,
         for (Entity* entity : cell->entity_list) {
             if (!room->grid_service.EntityInGridList(entity, old_grid_list)) {
                 switch (entity->entity_type) {
-                case ET_Building:
                 case ET_Obstacle:
-                case ET_Hero:
                 case ET_Loot:
                     {
                         AddToNewObjects(entity);
@@ -527,9 +512,7 @@ void Human::OnGridListChange(std::set<GridCell*>& old_grid_list,
         for (Entity* entity : cell->entity_list) {
             if (!room->grid_service.EntityInGridList(entity, grid_list)) {
                 switch (entity->entity_type) {
-                case ET_Building:
                 case ET_Obstacle:
-                case ET_Hero:
                 case ET_Loot:
                     {
                         AddOutObjects(entity);
@@ -557,25 +540,6 @@ void Human::FillMFGasData(cs::MFGasData* gas_data)
         long long duration = MetaMgr::Instance()->gas_inactive_time * SERVER_FRAME_RATE -
             (room->frame_no - room->gas_data.gas_start_frameno);
         gas_data->set_duration(std::max(duration * 50, (long long)1000) / 1000);
-    } else if (room->gas_data.gas_mode == GasJump) {
-        gas_data->set_duration(0);
-   } else if (room->gas_data.gas_mode == GasMoving) {
-        if (room->gas_data.new_area_meta->i->shrink_speed() > 0.01f) {
-            long long duration = (room->gas_data.old_area_meta->i->rad() - room->gas_data.new_area_meta->i->rad()) /
-                room->gas_data.new_area_meta->i->shrink_speed();
-            ++duration;
-            gas_data->set_duration(++duration);
-        } else {
-            gas_data->set_duration(0);
-        }
-     } else {
-        if (room->gas_data.old_area_meta->i->wait_time() <= 0) {
-            gas_data->set_duration(0);
-        } else {
-            long long duration = room->gas_data.old_area_meta->i->wait_time() * 20 -
-                (room->frame_no - room->gas_data.gas_start_frameno);
-            gas_data->set_duration(std::max(duration * 50, (long long)1000) / 1000);
-        }
     }
 }
 
@@ -593,9 +557,6 @@ void Human::RecalcBuff()
 {
     buff = HumanAbility();
     if (skin_meta) {
-        buff.damage_add += skin_meta->GetAttrValue(skin.skin_lv, EA_Atk);
-        buff.def_add += skin_meta->GetAttrValue(skin.skin_lv, EA_Def);
-        buff.speed += skin_meta->GetAttrValue(skin.skin_lv, EA_Speed);
     }
 }
 
@@ -612,9 +573,6 @@ void Human::RemoveObserver(Human* observer)
 void Human::SendUpdateMsg()
 {
     if (!follow_target_) {
-        if (send_msg_times == 0) {
-            room->FetchBuilding(this);
-        }
         cs::MFActivePlayerData* active_player_data_pb = nullptr;
         if (send_msg_times == 0 || need_sync_active_player) {
             active_player_data_pb = new cs::MFActivePlayerData();
@@ -625,7 +583,6 @@ void Human::SendUpdateMsg()
         cs::SMUpdate* msg = room->frame_maker.MakeUpdateMsg(this);
         if (send_msg_times == 0 || last_sync_gas_frameno < room->gas_data.gas_start_frameno) {
             last_sync_gas_frameno = room->gas_data.gas_start_frameno;
-            FillMFGasData(msg->mutable_gas_data());
         }
         bool refreshed_view = false;
         std::set<Entity*> view_objects;
@@ -648,9 +605,7 @@ void Human::SendUpdateMsg()
                         }
                         for (Entity* entity : cell->entity_list) {
                             switch (entity->entity_type) {
-                            case ET_Building:
                             case ET_Obstacle:
-                            case ET_Hero:
                             case ET_Loot:
                                 {
                                     view_objects.insert(entity);
@@ -1006,6 +961,7 @@ void Human::FindLocationWithTarget(Entity* target)
         room->grid_service.GetAllCellsByXy(pos.x, pos.y, new_grid_list);
         for (auto& grid : new_grid_list) {
             for (Entity* entity : grid->entity_list) {
+                #if 0
                 switch (entity->entity_type) {
                 case ET_Building:
                     {
@@ -1017,6 +973,7 @@ void Human::FindLocationWithTarget(Entity* target)
                 default:
                     break;
                 }
+                #endif
                 if (building) {
                     break;
                 }
diff --git a/server/gameserver/metadata.cc b/server/gameserver/metadata.cc
index 738a50c..d4f9f69 100644
--- a/server/gameserver/metadata.cc
+++ b/server/gameserver/metadata.cc
@@ -61,22 +61,6 @@ namespace MetaData
                                              );
             }
         }
-        {
-            std::vector<std::string> strings;
-            a8::Split(i->volume(), strings, '|');
-            for (auto& str : strings) {
-                std::vector<std::string> strings2;
-                a8::Split(str, strings2, ':');
-                assert(strings2.size() == 2);
-                if (strings2.size() >= 2) {
-                    size_t slot = a8::XValue(strings2[0]);
-                    size_t num = a8::XValue(strings2[1]);
-                    if (slot >= 0 && slot < volume.size()){
-                        volume[slot] = num;
-                    }
-                }
-            }
-        }
     }
 
     void EquipUpgrade::Init()
@@ -128,22 +112,6 @@ namespace MetaData
 
     void Player::Init()
     {
-        {
-            std::vector<std::string> strings;
-            a8::Split(i->volume(), strings, '|');
-            for (auto& str : strings) {
-                std::vector<std::string> strings2;
-                a8::Split(str, strings2, ':');
-                assert(strings2.size() == 2);
-                if (strings2.size() >= 2) {
-                    size_t slot = a8::XValue(strings2[0]);
-                    size_t num = a8::XValue(strings2[1]);
-                    if (slot >= 0 && slot < volume.size()){
-                        volume[slot] = num;
-                    }
-                }
-            }
-        }
     }
 
     void Robot::Init()
diff --git a/server/gameserver/metadata.h b/server/gameserver/metadata.h
index 8521497..a1dd316 100755
--- a/server/gameserver/metadata.h
+++ b/server/gameserver/metadata.h
@@ -47,8 +47,6 @@ namespace MetaData
         const metatable::Equip* i = nullptr;
 
         std::vector<std::tuple<float, float, float>> bullet_born_offset;
-        std::array<int, IS_END> volume = {};
-
         void Init();
     };
 
@@ -67,8 +65,6 @@ namespace MetaData
     {
         const metatable::Player* i = nullptr;
 
-        std::array<int, IS_END> volume = {};
-
         void Init();
     };
 
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index a76ae0c..ea9c09a 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -447,11 +447,6 @@ void Room::RemoveObjectLater(Entity* entity)
                            Entity* entity = (Entity*)param.sender.GetUserData();
                            switch (entity->entity_type) {
                            case ET_Loot:
-                           case ET_Hero:
-                               {
-                                   entity->BroadcastDeleteState();
-                                   entity->room->grid_service.DelEntity(entity);
-                               }
                                break;
                            case ET_Player:
                                {
@@ -475,15 +470,6 @@ void Room::RemoveObjectLater(Entity* entity)
                                      &entity->xtimer_attacher.timer_list_);
 }
 
-void Room::FetchBuilding(Human* hum)
-{
-    for (auto& pair : uniid_hash_) {
-        if (pair.second->entity_type == ET_Building) {
-            hum->AddToNewObjects(pair.second);
-        }
-    }
-}
-
 void Room::OnHumanDie(Human* hum)
 {
     --alive_count_;
@@ -604,17 +590,6 @@ Entity* Room::FindFirstCollisonEntity(const a8::Vec2& aabb_pos, AabbCollider& aa
                     }
                 }
                 break;
-            case ET_Building:
-                {
-                    if (!target || target->entity_type != ET_Building) {
-                        AabbCollider building_aabb_box;
-                        entity->GetAabbBox(building_aabb_box);
-                        if (building_aabb_box.IntersectEx(aabb_pos, &aabb_box)) {
-                            target = entity;
-                        }
-                    }
-                }
-                break;
             default:
                 break;
             }
@@ -738,7 +713,9 @@ void Room::UpdateGasInactive()
 {
     if (frame_no - gas_data.gas_start_frameno >=
         MetaMgr::Instance()->gas_inactive_time * SERVER_FRAME_RATE) {
+        #if 0
         gas_data.gas_mode = GasJump;
+        #endif
         gas_data.gas_start_frameno = frame_no;
         if (human_hash_.size() < ROOM_MAX_PLAYER_NUM) {
             CreateAndroid(ROOM_MAX_PLAYER_NUM - human_hash_.size());
@@ -863,9 +840,6 @@ void Room::AddObjectLater(Entity* entity)
     auto add_func = [] (const a8::XParams& param)
                        {
                            Entity* entity = (Entity*)param.sender.GetUserData();
-                           if (entity->entity_type == ET_Bullet) {
-                               entity->room->moveable_hash_[entity->entity_uniid] = entity;
-                           }
                            entity->room->uniid_hash_[entity->entity_uniid] = entity;
                            entity->room->later_add_hash_.erase(entity->entity_uniid);
                        };
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index b8f0d7d..0c8b4de 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -57,7 +57,6 @@ public:
 
     void RemoveObjectLater(Entity* entity);
 
-    void FetchBuilding(Human* hum);
     void FillSMJoinedNotify(Player* self_hum, cs::SMJoinedNotify& msg);
 
     void TouchPlayerList(a8::XParams param,
diff --git a/server/gameserver/types.h b/server/gameserver/types.h
index 8dd76bb..56976ec 100755
--- a/server/gameserver/types.h
+++ b/server/gameserver/types.h
@@ -31,16 +31,7 @@ namespace cs
 struct GasData
 {
     GasMode_e gas_mode = GasInactive;
-    a8::Vec2 pos_old;
-    a8::Vec2 pos_old_bk;
-    a8::Vec2 pre_pos_old;
-    a8::Vec2 pos_new;
-    float rad_old = 0.0f;
-    float rad_new = 0.0f;
-    float gas_progress = 0.0f;
     long long gas_start_frameno = 0;
-    MetaData::SafeArea* old_area_meta = nullptr;
-    MetaData::SafeArea* new_area_meta = nullptr;
     bool is_last_gas = false;
 };
 
@@ -80,14 +71,6 @@ struct PlayerStats
     int rank = 0;
 };
 
-struct Plane
-{
-    a8::Vec2 start_point;
-    a8::Vec2 end_point;
-    a8::Vec2 dir;
-    a8::Vec2 curr_pos;
-};
-
 struct HumanAbility
 {
     float speed = 0.0f;
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index 05ddf73..6a015f3 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -429,9 +429,6 @@ message SMUpdate
     optional int32 active_player_id = 5; //当前活跃玩家id(如果玩家死亡后是观战对象的id)
     optional MFActivePlayerData active_player_data = 6; //活跃玩家数据(如果玩家死亡后是观战对象的数据)
     optional int32 alive_count = 15; //存活数量
-    optional int32 gas_progress = 16; //毒圈进度,表示缩进的像素数(只有当gas_data.mode == moving时才会发进度)
-    optional MFVector2D gas_pos_old = 30; //毒圈当前圆心坐标
-    optional MFGasData gas_data = 17; //毒圈数据
     repeated MFTeamData team_data = 18; //队伍数据
     repeated MFEmote emotes = 23; //表情
 }